You might try tuning the car in straight open loop (what you're running now). When you're satisfied that's it's hitting target and the tip-in is working correctly, you can re-enable closed loop. I have found that trying to tune tip-in with an active closed loop fueling system is very difficult.
You should also not run the car with the O2 sensor installed but not plugged in. Driving with an unpowered O2 can damage the sensor, it needs to be heated. You can alter the tune slightly to force the car into permanent open loop while still leaving the O2 installed and plugged in (and you can log from it as well). This is what I'd recommend.